> On 20 Jul 2014, at 17:35, Rohit Yadav <rohit.ya...@shapeblue.com> wrote:
> 
> Hi,
> 
> I'm assuming no one objects the proposal and the spec, I'll move forward
> with the first implementation starting next week but will be mostly
> offline till 28th July.
> 

+1 from me , most definitely.

Your email was clear, thanks for putting up the design doc on the wiki. I agree 
with a first step to implement an SP.

-sebastien

> Regards.
> 
> Rohit Yadav wrote:
>> Hi guys,
>> 
>> There has been a lot of interest [4] around auth related problems in
>> CloudStach such as -- SSO/SLO (single sign on / log out), 2-factor
>> authentication, role based network/IP/CIDR checking etc.
>> 
>> A lot of challenge in implementing them in CloudStack is because of two
>> divergent authentication mechanisms (one that is
>> username/password/cookie based, other which is api/secret keys or
>> hmac/signature based).
>> 
>> This thread tries to kickstart a project in that direction which will in
>> short term try to implement a SAML2 plugin and in long term have a much
>> better authentication framework.
>> 
>> Let me start by briefly explaining what SAML2 [1] is -- it's an XML
>> based authentication and authorization protocol widely used to implement
>> single sign on service. Having a SAML plugin in ACS will give users and
>> organization a new mode of authentication who already have such an
>> infrastructure in place.
>> 
>> A SAML based SSO infrastructure consists of three entities - user-agent
>> (UA), service provider (SP) and identity provider (IdP). The UA is the
>> user/browser, the SP is the application that the UA is accessing (i.e.
>> Apache CloudStack UI) and the IdP is the identity service and does
>> authentication and authorization, management of users among other
>> things. IdP could be backed by LDAP, AD etc. For the scope of this
>> feature, we only need to implement SAML SP plugin in CloudStack and use
>> any free SAML 2.0 compliant IdP server [5] for testing.
>> 
>> For this I researched and explored ways of implementing that and have a
>> first draft which needs to be discussed and iterated in the ACS dev
>> community.
>> 
>> After comparing many opensource SAML 2.0 implementations, their
>> security and stability, we'll use OpenSAML [2] which is the most stable
>> and widely used Java implementation. Since within CloudStack, we've been
>> using Spring (for DI etc.) I explored and found Spring security SAML
>> extension [3] which fits perfectly and it too uses OpenSAML.
>> 
>> I also have a working proof-of-concept general implementation using the
>> above based on which I've put together a design document draft on this
>> feature for your review:
>> 
>> https://cwiki.apache.org/confluence/display/CLOUDSTACK/SAML+2.0+Plugin
>> 
>> There are some complex stories/cases around security and user management
>> in CloudStack, some of which are listed under 'open ended questions' in
>> the draft above most of which I'm not sure how to address.
>> 
>> After first round of discussion, I'll go ahead with a basic
>> implementation of this feature. The second phase will address broader
>> use cases.
>> 
>> Comments, questions, suggestions?
>> 
>> References:
>> 
>> [1] http://en.wikipedia.org/wiki/SAML_2.0
>> [2] https://wiki.shibboleth.net/confluence/display/OpenSAML/Home
>> [3] http://projects.spring.io/spring-security-saml
>> [4] John Burwell's talk on SSO in CloudStack:
>> https://www.youtube.com/watch?v=kCR0TzrfCOM
>> [5] https://idp.ssocircle.com/sso/UI/Login
>> 
>> Regards,
>> Rohit Yadav
>> Software Architect, ShapeBlue
>> M. +91 88 262 30892 | rohit.ya...@shapeblue.com
>> Blog: bhaisaab.org | Twitter: @_bhaisaab
>> 
>> 
>> Find out more about ShapeBlue and our range of CloudStack related services
>> 
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> 
> --
> Rohit Yadav
> Software Architect, ShapeBlue
> M. +41 779015219 | rohit.ya...@shapeblue.com
> Blog: bhaisaab.org | Twitter: @_bhaisaab
> 
> 
> Find out more about ShapeBlue and our range of CloudStack related services
> 
> IaaS Cloud Design & Build<http://shapeblue.com/iaas-cloud-design-and-build//>
> CSForge – rapid IaaS deployment framework<http://shapeblue.com/csforge/>
> CloudStack Consulting<http://shapeblue.com/cloudstack-consultancy/>
> CloudStack Infrastructure 
> Support<http://shapeblue.com/cloudstack-infrastructure-support/>
> CloudStack Bootcamp Training 
> Courses<http://shapeblue.com/cloudstack-training/>
> 
> This email and any attachments to it may be confidential and are intended 
> solely for the use of the individual to whom it is addressed. Any views or 
> opinions expressed are solely those of the author and do not necessarily 
> represent those of Shape Blue Ltd or related companies. If you are not the 
> intended recipient of this email, you must neither take any action based upon 
> its contents, nor copy or show it to anyone. Please contact the sender if you 
> believe you have received this email in error. Shape Blue Ltd is a company 
> incorporated in England & Wales. ShapeBlue Services India LLP is a company 
> incorporated in India and is operated under license from Shape Blue Ltd. 
> Shape Blue Brasil Consultoria Ltda is a company incorporated in Brasil and is 
> operated under license from Shape Blue Ltd. ShapeBlue SA Pty Ltd is a company 
> registered by The Republic of South Africa and is traded under license from 
> Shape Blue Ltd. ShapeBlue is a registered trademark.

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